Automatic backwashing water purification preposed filtering device

Abstract

The utility model relates to the technical field of water purification and filtration, in particular to an automatic backwashing water purification pre-filter device, which comprises a water purifier and a pre-filter, the water purifier comprises a water inlet, a drain outlet and a purified water outlet, all parts of the water purifier are fixedly connected through fasteners, and the pre-filter comprises an upper cylinder and a lower cylinder. According to the utility model, the two groups of pressure gauges of the upper cylinder body provide accurate pressure monitoring, so that abnormity can be conveniently found and solved in time, the safe operation of the system is ensured, and reading is convenient. The filter element is matched with the limiting groove and the limiting block, stability is kept, the filtering effect is improved, and mounting and dismounting are simplified. The design of a time recording port and a rotating block helps to remember the cleaning time of the filter element and ensure on-time maintenance. The water flow drives the fan blades and the scrapers to rotate to clean the inner wall of the lower barrel and the surface of the filter element, so that the cleaning effect is improved, and the problems of trouble and service life reduction caused by frequent filter element disassembly are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification and filtration, in particular to an automatic backwashing water purification pre-filter device. Background Art

[0002] The water purification filter is an indispensable device on the pipeline for conveying media. It is usually installed at the water inlet end of the pipeline of the water-using equipment. When the fluid enters the filter cartridge with a filter screen of a certain specification, its impurities are blocked, and the cleaned filtrate is discharged from the filter outlet. Usually, a water purification filter, also known as a pre-filter, is installed on the household main water pipe. It is the first coarse filtration device for the water used in the whole house, and can filter large particles such as mud, rust, etc. in the tap water. The pressure gauge used in the existing water purification pre-filter device is a traditional single pressure gauge, which makes it difficult to monitor in place, difficult to detect and solve system abnormalities in time, and reduces safety. At the same time, the filter element is not firmly fixed, easy to shift or fall off, affecting the filtering effect and complicated to install and disassemble. Due to the lack of design to record cleaning time and automatic cleaning, maintenance is not timely, affecting the use effect and life, and the filter element is inconvenient to clean, and needs to be frequently disassembled, which is troublesome to operate and easy to damage the filter element, reducing its service life. Summary of the invention

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: an automatic backwashing water purification pre-filter device, comprising a water purifier and a pre-filter, the water purifier comprising a water inlet, a sewage outlet and a purified water outlet, the various components of the water purifier are fixedly connected by fasteners, and the pre-filter comprises an upper cylinder and a lower cylinder;

[0005] A water inlet and a water outlet are arranged inside the upper cylinder body, and nuts are rotatably connected to the surfaces of the water inlet and the water outlet, a pressure gauge is arranged on the surface of the upper cylinder body, an insert is fixedly installed inside the upper cylinder body, the insert is connected to the water inlet, a time recording port is opened on the surface of the upper cylinder body, a rotating block is rotatably connected to the top of the upper cylinder body, and numbers are arranged on the surface of the rotating block, a column is fixedly installed inside the lower cylinder body, a fixing plate is fixedly installed on the top of the column, a filter element is arranged on the surface of the fixing plate, a fan blade and a scraper are rotatably connected to the surface of the column, the fan blade and the scraper are fixedly connected, a notch is opened on the top surface of the filter element, the insert inside the upper cylinder body is plugged into the notch inside the filter element, a sewage outlet is arranged at the bottom of the lower cylinder body, the sewage outlet is connected to the interior of the lower cylinder body, and a solenoid valve is arranged at the sewage outlet and the outlet of the water purifier;

[0006] The water outlet inside the upper cylinder is threadedly connected with the water inlet of the water purifier through a nut.

[0007] Preferably, the surface of the purified water outlet is threadedly connected with a disposable plug, thereby ensuring that no dust enters the water purifier during transportation.

[0008] Preferably, a bracket is fixedly mounted on the surface of the water purifier, and the bracket is mounted on the surface of the water purifier by fasteners. Here, the water purifier can be installed on the ground and the wall through the wall-mounting holes on the bracket, providing multiple installation methods for the water purifier.

[0009] Preferably, the water purifier and the fastener are both made of stainless steel, and the fastener is connected by anti-stripping dense thread. Here, the stainless steel material can effectively prevent the equipment from rusting and corrosion, and extend the service life of the device. The anti-stripping dense thread connection increases the firmness and safety of the fastener, and is explosion-proof and anti-stripping when encountering high-pressure water, and does not leak water.

[0010] Preferably, the number of the pressure gauges is two groups, and the two groups of pressure gauges are respectively located on both sides of the upper cylinder. Here, the two groups of pressure gauges can provide more accurate and comprehensive pressure monitoring, facilitate timely discovery and resolution of abnormal situations, and ensure the safe operation of the system. In addition, the design of being respectively located on both sides of the upper cylinder makes it more convenient to read the pressure value.

[0011] Preferably, a limit groove is provided on the bottom surface of the filter element, and a limit block is fixedly installed on the surface of the fixing plate, and the limit block is inserted into the limit groove. Here, the filter element can be ensured to remain stable during use and will not shift or fall off, thereby improving the stability and reliability of the filtering effect, and at the same time, simplifying the installation and removal process of the filter element.

[0012] Preferably, the upper cylinder and the lower cylinder are connected by threads, and sealing rings are provided between the upper cylinder and the lower cylinder, and between the insert and the notch. Here, a tight connection between the various parts of the device is ensured to prevent water leakage and air from entering the system, thereby ensuring the sealing and operating efficiency of the system. The sealing ring can also further improve the pressure resistance and safety of the system.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, the two sets of pressure gauges on the surface of the upper cylinder provide accurate and comprehensive pressure monitoring, which is convenient for timely detection and resolution of abnormal situations, ensuring the safe operation of the system, and making it more convenient to read the pressure value.

[0015] 2. In the utility model, the filter element in the pre-filter is designed with a limit groove and a limit block to ensure that the filter element remains stable during use and will not shift or fall off, thereby improving the stability and reliability of the filtering effect and simplifying the installation and removal process of the filter element.

[0016] 3. In the utility model, the time recording port and the rotating block design on the surface of the upper cylinder help personnel remember the filter element cleaning time and ensure timely maintenance.

[0017] 4. In the utility model, the fan blades and the scraper are driven to rotate by the water flow to clean the inner wall of the lower cylinder and the surface of the filter element, and the sewage outlet solenoid valve is regularly controlled to open and discharge sewage, thereby further improving the cleaning effect of the filter element, avoiding the trouble of personnel needing to disassemble the filter element for cleaning, and preventing the problem of reduced service life due to repeated disassembly of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of an automatic backwashing water purification pre-filter device proposed by the utility model;

[0019] Figure 2 A schematic diagram of a water purifier with an automatic backwashing water purification pre-filter device is provided in the utility model;

[0020] Figure 3 A schematic diagram of a pre-filter of an automatic backwashing water purification pre-filter device proposed in the utility model;

[0021] Figure 4 A cross-sectional view of a pre-filter of an automatic backwashing water purification pre-filter device proposed in the utility model;

[0022] Figure 5 This is a schematic diagram of an upper cylinder of an automatic backwashing water purification pre-filter device proposed in the utility model;

[0023] Figure 6 This is a cross-sectional view of the lower cylinder of an automatic backwashing water purification pre-filter device proposed in the utility model;

[0024] Figure 7 The utility model provides a schematic diagram of a filter element of an automatic backwashing water purification pre-filter device.

[0025] Legend:

[0026] 1. Water purifier; 11. Water inlet; 12. Sewage outlet; 13. Purified water outlet; 14. Disposable plug; 15. Fastener; 16. Bracket; 2. Pre-filter; 21. Upper cylinder; 211. Time recording port; 212. Turning block; 213. Nut; 214. Pressure gauge; 215. Water inlet; 216. Water outlet; 217. Insert cylinder; 22. Lower cylinder; 221. Sewage outlet; 2211. Solenoid valve; 222. Column; 223. Fixing plate; 224. Filter element; 225. Fan blade; 226. Scraper; 227. Limiting groove; 228. Limiting block; 229. Notch. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Example

[0029] See also Figure 1-7 The utility model provides a technical solution: an automatic backwashing water purification pre-filter device, comprising a water purifier 1 and a pre-filter 2, the water purifier 1 comprising a water inlet 11, a sewage outlet 12 and a purified water outlet 13, and the components of the water purifier 1 are fixedly connected by fasteners 15. In one embodiment, a disposable plug 14 is threadedly connected to the surface of the purified water outlet 13, further ensuring that no dust enters the water purifier 1 during transportation. In another embodiment, a bracket 16 is fixedly installed on the surface of the water purifier 1, and the bracket 16 is installed on the surface of the water purifier 1 through the fastener 15, the water purifier 1 and the fastener 15 are both made of stainless steel, and the fastener 15 is connected by an anti-stripping dense thread. Further, the wall-mounted hole on the bracket 16 allows the water purifier 1 to be installed on the ground and the wall, providing a variety of installation methods for the water purifier 1, the stainless steel material can effectively prevent the equipment from rusting and corrosion, and extend the service life of the device, and the anti-stripping dense thread connection increases the firmness and safety of the fastener 15, which is explosion-proof and anti-stripping when encountering high-pressure water, and does not leak.

[0030] In this embodiment, the pre-filter 2 includes an upper cylinder 21 and a lower cylinder 22. The upper cylinder 21 is provided with a water inlet 215 and a water outlet 216. The upper cylinder 21 is fixedly provided with an insert 217, which is connected to the water inlet 215. In one embodiment, the upper cylinder 21 and the lower cylinder 22 are connected by threads, and sealing rings are provided between the upper cylinder 21 and the lower cylinder 22, as well as between the insert 217 and the notch 229. Further, the tight connection between the various parts of the device is ensured to prevent water leakage and air from entering the system, thereby ensuring the sealing and operating efficiency of the system. The sealing ring can also further improve the pressure resistance and safety of the system. The water outlet 216 inside the upper cylinder 21 is threadedly connected to the water inlet 11 of the water purifier 1 through the nut 213. In another embodiment, the upper cylinder 21 and the lower cylinder 22 are connected by threads.

[0031] In this embodiment, the surfaces of the water inlet 215 and the water outlet 216 are both rotatably connected with nuts 213, and the water outlet 216 inside the upper cylinder 21 is threadedly connected to the water inlet 11 of the water purifier 1 through the nuts 213. In one embodiment, tap water enters the pre-filter 2 through the water inlet 215, and by pre-filtering the tap water, the filtered tap water enters the water purifier 1 from the water inlet 11 of the water purifier 1 through the water outlet 216, and further, the silt, rust and large particles can be effectively removed, and the blockage problem of water-related home appliances caused by impurities can be effectively prevented, thereby effectively extending the service life of the home appliances.

[0032] In this embodiment, a pressure gauge 214 is provided on the surface of the upper cylinder 21. In one embodiment, the number of the pressure gauges 214 is two groups, and the two groups of pressure gauges 214 are respectively located on both sides of the upper cylinder 21. Further, the two groups of pressure gauges 214 can provide more accurate and comprehensive pressure monitoring, which is convenient for timely discovery and resolution of abnormal situations and ensuring the safe operation of the system. In addition, the design of being respectively located on both sides of the upper cylinder 21 makes it more convenient to read the pressure value.

[0033] In this embodiment, a time recording port 211 is provided on the surface of the upper cylinder 21, and a rotating block 212 is rotatably connected to the top of the upper cylinder 21, and numbers are provided on the surface of the rotating block 212. In one embodiment, after flushing the pre-filter 2, by rotating the rotating block 212, the numbers on the rotating block 212 are observed by personnel through the time recording port 211, which helps personnel remember the cleaning time of the filter element 224. Furthermore, the number is recorded once after each flushing, and the crushed stone can check the last flushing record.

[0034] In this embodiment, a column 222 is fixedly installed inside the lower cylinder 22, a fixing plate 223 is fixedly installed on the top of the column 222, a filter element 224 is arranged on the surface of the fixing plate 223, a fan blade 225 and a scraper 226 are rotatably connected to the surface of the column 222, the fan blade 225 and the scraper 226 are fixedly connected, a slot 229 is provided on the top surface of the filter element 224, and a sewage outlet 221 is provided at the bottom of the lower cylinder 22, and the sewage outlet 221 is communicated with the interior of the lower cylinder 22. In one embodiment, when the pre-filter 2 is flushed, water flows into the pre-filter 2 through the tap water port 215, and the water flow drives the fan blades 225 to rotate on the surface of the column 222, and the fan blades 225 drive the scraper 226 to rotate inside the lower cylinder 22, so that the filter element 224 and the inner wall of the lower cylinder 22 can be scraped and cleaned. The flushing water flow is discharged by periodically controlling the solenoid valve 2211 to open the discharge outlet 221, further improving the cleaning process of the filter element 224, avoiding the need for personnel to remove the filter element 224 for cleaning, and at the same time, avoiding the situation where the service life of the filter element 224 is reduced due to multiple removal of the filter element 224.

[0035] In this embodiment, the outlet 221 and the outlet of the water purifier 1 are provided with a solenoid valve 2211, and the solenoid valve 2211 at the outlet 221 is controlled by a computer to discharge sewage regularly, which plays a self-cleaning role and controls three time periods of 10s, which can also be 1 second to 1 hour per period. Further, the user's convenience in using the water purifier is improved, and the degree of automation of the water purifier is improved.

[0036] In this embodiment, a limiting groove 227 is provided on the bottom surface of the filter element 224, and a limiting block 228 is fixedly installed on the surface of the fixing plate 223, and the limiting block 228 is inserted into the inside of the limiting groove 227. In one embodiment, the upper cylinder 21 and the lower cylinder 22 are disassembled, and the filter element 224 can be taken out from the inside of the lower cylinder 22. The cooperation between the limiting block 228 and the limiting groove 227 ensures that the filter element 224 remains stable during use and does not shift or fall off, further improving the stability and reliability of the filtering effect, and at the same time, simplifying the installation and removal process of the filter element 224.

[0037] Working principle: First, ensure that all parts of the water purifier 1 and the pre-filter 2 are intact, check whether the sealing rings at all threaded connections are installed in place and are not damaged, and then use fasteners 15 to fix the parts of the water purifier 1 to ensure firmness. Connect the upper cylinder 21 of the pre-filter 2 to the lower cylinder 22 through threads, and ensure that the sealing ring is well sealed. Next, connect the tap 215 to the water source pipeline and fix it with the nut 213 to ensure that the connection is tight and there is no water leakage. Open the upper cylinder 21 of the pre-filter 2, insert the filter element 224 into the fixing plate 223 inside the lower cylinder 22, and ensure that the limit groove 227 of the filter element 224 cooperates with the limit block 228 on the fixing plate 223 to ensure that the filter element 224 is stable and does not shift. Monitor the water pressure in the system through the two sets of pressure gauges 214 on the surface of the upper cylinder 21 to ensure that the water pressure is within the normal range and avoid abnormal situations. Turn on the water source, and the tap water enters the pre-filter 2 through the tap water port 215 for pre-filtration. The filtered water enters the water inlet 11 of the water purifier 1 through the water outlet 216 for further purification, and finally flows out through the purified water outlet 13. Rinse the pre-filter 2 regularly, open the tap water port 215, let the water flow into the pre-filter 2, and the water flow drives the fan blade 225 and the scraper 226 to rotate, scrape and clean the filter element 224 and the inner wall of the lower cylinder 22, and the flushed sewage is discharged through the sewage outlet 221 at the bottom of the lower cylinder 22. After each flushing, by rotating the rotating block 212 on the surface of the upper cylinder 21, observe and record the flushing time at the time recording port 211 to ensure timely maintenance. Through these steps, the water purification pre-filter device can effectively pre-filter impurities in the water, extend the service life of the water purifier 1 and household appliances, and ensure the stable operation of the system.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An automatic backwashing water purification pre-filter device, comprising a water purifier (1) and a pre-filter (2), characterized in that: The water purifier (1) comprises a water inlet (11), a sewage outlet (12) and a purified water outlet (13); the various components of the water purifier (1) are fixedly connected via fasteners (15); and the pre-filter (2) comprises an upper cylinder (21) and a lower cylinder (22); The upper cylinder (21) is provided with a water inlet (215) and a water outlet (216) inside, and the surfaces of the water inlet (215) and the water outlet (216) are both rotatably connected to nuts (213). The surface of the upper cylinder (21) is provided with a pressure gauge (214). An insert (217) is fixedly installed inside the upper cylinder (21), and the insert (217) is connected to the water inlet (215). A time recording port (211) is provided on the surface of the upper cylinder (21). A rotating block (212) is rotatably connected to the top of the upper cylinder (21), and numbers are provided on the surface of the rotating block (212). A column (222) is fixedly installed inside the lower cylinder (22), and the column (222 ) is fixedly mounted on the top of the upper cylinder (21), a filter element (224) is arranged on the surface of the fixing plate (223), a fan blade (225) and a scraper (226) are rotatably connected to the surface of the column (222), the fan blade (225) and the scraper (226) are fixedly connected, a notch (229) is provided on the top surface of the filter element (224), an insert (217) inside the upper cylinder (21) is plugged into the notch (229) inside the filter element (224), a sewage outlet (221) is arranged at the bottom of the lower cylinder (22), the sewage outlet (221) is communicated with the interior of the lower cylinder (22), and a solenoid valve (2211) is arranged at the sewage outlet (221) and the outlet of the water purifier (1); The water outlet (216) inside the upper cylinder (21) is threadedly connected to the water inlet (11) of the water purifier (1) via a nut (213).

2. The automatic backwash water purification pre-filter device according to claim 1 is characterized in that: A disposable plug (14) is threadedly connected to the surface of the purified water outlet (13).

3. The automatic backwashing water purification pre-filter device according to claim 1 is characterized in that: A bracket (16) is fixedly mounted on the surface of the water purifier (1), and the bracket (16) is mounted on the surface of the water purifier (1) via a fastener (15).

4. The automatic backwashing water purification pre-filter device according to claim 1 is characterized in that: The water purifier (1) and the fastener (15) are both made of stainless steel, and the fastener (15) is connected by an anti-slip dense thread.

5. The automatic backwashing water purification pre-filter device according to claim 1 is characterized in that: The pressure gauges (214) are provided in two groups, and the two groups of pressure gauges (214) are respectively located on two sides of the upper cylinder (21).

6. The automatic backwash water purification pre-filter device according to claim 1 is characterized by: The bottom surface of the filter element (224) is provided with a limiting groove (227), and a limiting block (228) is fixedly mounted on the surface of the fixing plate (223), and the limiting block (228) is inserted into the limiting groove (227).

7. The automatic backwashing water purification pre-filter device according to claim 1 is characterized by: The upper cylinder (21) and the lower cylinder (22) are threadedly connected, and sealing rings are provided between the upper cylinder (21) and the lower cylinder (22) as well as between the insert cylinder (217) and the notch (229).

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